public static Task ShowDrawer(object view, string?title = null, DrawerDirection direction = DrawerDirection.Right)
{
if (!(view is UserControl control))
{
throw new Exception("Invalid view");
}
if (ShowingDrawer == null)
{
return(Task.CompletedTask);
}
return(ShowingDrawer.Invoke(title, control, direction));
}
public Task ShowDrawer <T>(string title, DrawerDirection direction)
{
UserControl view = this.CreateView <T>();
return(this.ShowingDrawer?.Invoke(title, view, direction));
}
private async Task OnShowDrawer(string?title, UserControl view, DrawerDirection direction)
{
await Application.Current.Dispatcher.InvokeAsync(async() =>
{
// Close all current drawers.
this.DrawerHost.IsLeftDrawerOpen = false;
this.DrawerHost.IsTopDrawerOpen = false;
this.DrawerHost.IsRightDrawerOpen = false;
this.DrawerHost.IsBottomDrawerOpen = false;
// If this is a drawer view, bind to its events.
if (view is IDrawer drawer)
{
drawer.Close += () => this.DrawerHost.IsLeftDrawerOpen = false;
drawer.Close += () => this.DrawerHost.IsTopDrawerOpen = false;
drawer.Close += () => this.DrawerHost.IsRightDrawerOpen = false;
drawer.Close += () => this.DrawerHost.IsBottomDrawerOpen = false;
}
switch (direction)
{
case DrawerDirection.Left:
{
this.DrawerLeft.Content = view;
this.DrawerHost.IsLeftDrawerOpen = true;
this.LeftTitle.Content = title;
break;
}
case DrawerDirection.Top:
{
this.DrawerTop.Content = view;
this.DrawerHost.IsTopDrawerOpen = true;
break;
}
case DrawerDirection.Right:
{
this.DrawerRight.Content = view;
this.DrawerHost.IsRightDrawerOpen = true;
this.RightTitle.Content = title;
break;
}
case DrawerDirection.Bottom:
{
this.DrawerBottom.Content = view;
this.DrawerHost.IsBottomDrawerOpen = true;
break;
}
}
// Wait while any of the drawer areas remain open
while (this.DrawerHost.IsLeftDrawerOpen ||
this.DrawerHost.IsRightDrawerOpen ||
this.DrawerHost.IsBottomDrawerOpen ||
this.DrawerHost.IsTopDrawerOpen)
{
await Task.Delay(250);
}
GC.Collect();
});
}
public ShowDrawerAnimatedTransitioning(DrawerDirection direction, int maxX)
{
Direction = direction;
MaxX = maxX;
}
public ShowDrawerTransitionDelegate(DrawerDirection direction, int maxX)
{
Direction = direction;
MaxX = maxX;
}
